Ink-font.



PA m-31\ITBDI AUG. .23, 1904.

I. L. DAVENPORT.

INK FOUNT.

APPLIGATION FILED JAN. G, 1904.

NOMODEL.

WITNESSES.-

Patented August 23, 1904. 4

PATENT OFFICE.

ISAAC L. DAVENPORT, oE CAMDEN, NEW JERSEY.

.INK-FONT.-

SPECIFICATION forming part of Letters Patent No. 768,522, dated August 23, 1904.

Application iled January 6 1904.

To ct//Z whom it may concern:

Be it known that I, ISAAC LEWIS DAVEN- PORT, a Citizen of the United States, residing serted in the font without smearing of the ink on the fingers or penholder, said fout having its outlet so protected that evaporation is reduced to a minimum.

rlhe nature and scope of my invention will be more fully understood from the following description, taken in connection with the ac.- companying drawings, forming part hereof, in Which- A Figure 1 is a vertical'sectional view of an ink-font embodying main features of my invention. Fig. 2 is a vertical Sectional view of the front wall or cover with ink-cup attached of the ink font.v Fig. 3 isa sectional view ot' the buoyant funnel detached from the font, and Fig. 4 is a sectional view of the cap-funnel, detached from the font.

Referring to the drawings, 1 represents the glass or similar reservoir-,which may be made in various shapes, as desired. A recess is formed around the inside of the open end, as shown at 17. The detachable front or cover 15 for the reservoir 1 is preferably made of hard rubber, having an inwardly-projecting flange or lip 14, designed to iit in the recess 17 of the reservoir 1. One mode of tightly securing'the flange or lip 14 within the recess '17 of the reservoir 1 consists of a gasket 18 of yielding material, preferably soft rubber, which, as shown in Fig. 1, is placed between the body of the reservoir 1 and the iiange 14 of the removable front or cover 15. Def

pending from the inner edge of the flange 14 is an inner wall or partition 3, which reaches partition 3 into the reservoir 1.

Serial No. 187,879. (No model.l

nearly to the bottom of the reservoir 1 and forms an air-chamber' 4 between the said partition 3 and' the front or Cover 15, said airchamber communicating with the reservoir at the bottom of the partition 3. The upper` portion of the front or cover 15 has an opening 5, provided with the stopper 6, which has a small vent-hole 7 through it. The ink-cup 8, attached to the lower portion of the front or cover 15, is bored out somewhat larger at the top, as shown at 9, lto serve as a clearance for the upper portion of the buoyant funnel 12. An opening 13 affords communication between the reservoir 1 andthe inkcup 8. The funnel 12 is made of buoyant material `and has a tubular extension 22, surrounding the outer periphery of the funnel and extending down nearly t o the bottom of the tubularend 23 of said funnel and open at the lower end. The extension 22 is adapted to fit loosely within the smaller portion of the ink-cup 8. A funnel-shaped stationary cap' 10 is provided with a ilange around the top and is shouldered underneath, as at 16, so as to engage in the top of the inlr-cup, said` shoulder acting as a stop to the rise of the buoyant funnel 12. It will be understood that when the buoyant funnel 12 is in working position, as in Fig. 1, only the lower portion of the tubular extension 22 comes in contact with the inside of the inl-cup and the air-space 9 separates the upper end of the eX- tension 22 from the cup 8, thus preventing the upper portion from drying fast to the walls of the cup 8.

The operation of the ink-font is as follows: The reservoir 1 is turned over on its back, the stopper 6 is removed, and the fluid poured through the opening 5 into the air-chamber 4, from which it ows over the end of the The stopper 6 is then replaced and the reservoir set on its bottom, `when the air will enter through the vent 7 and pass under the bottom of the partition 3 into the reservoir, allowing the uid to flow out into the ink-cup until it reaches a level with the bottom of the wall 3, when the air-supply will be cut oif, so that no more fluid can liow out of the reservoir 1. As thel fiuid rises in the ink-cup the confined` air in IOO the tubular extension Q2 will lift the funnel l2 until its top edge rests against the under side of the shoulder 16 of the cap 10. A slight pressure of the pen in the funnel l2 sinks the funnel l2 to the bottom of the cup 8, and the Huid in seeking its level runs up through the tubular end 23 into the funnel l2 proper, thus coming in contact with the pen. The cap-funnel l() may be removed and the buoyant funnel 12 taken out at any time for cleaning, or the cup can be used with only the upper or cap funnel in place.

Having thus described the nature and object of my invention, what I claim as new, and desire to secure by Letters Patent, is

l. The combination with an ink-reservoir having a shouldered or recessed opening in one of its walls, of a detachable front or cover having an inwardly-extending flange adapted to engage in the recess in the opening of the reservoir, an inner partition depending from the flange and adapted to separate the reservoir from the front or cover except near the bottom of the same, an opening through the upper portion of the cover provided with a stopper having a small air-vent through it, and an ink-cup attached to the lower portion of the cover and communicating with the bottom of the reservoir through an opening in the cover and partition.

2. The combination with an ink-reservoir having an opening in one of its walls, of a detachable cover or front, an inner partition located some distance from the front or cover and forming an air-chamber between the reservoir and said cover, said air-chamber communicating with the reservoir below the bottom of the inner partition, an opening through the upper part of the cover into the air-chamber provided with a suitable stopper, an inl;- eup attached to the lower portion of the cover and communicating with the reservoir through an opening in the cover on a plane parallel with the bottom of the reservoir, a funnel depending within the ink-cup and adapted to slide loosely in said ink-cup, and a cap-funnel having' a lat iange at the top adapted to cover the top oit' the ink-cup, and shouldered underneath the flange to engage therein.

',lhe combination with an ink-reservoir having an opening, o't' a detachable .iront or cover adapted to engage tightly in the opening of the reservoir, an inner partition arranged on the inside of the cover and forming an air-chamber between the reservoir and the front cover, said air-chamber communicating at its bottom with the reservoir and at its upper part with the open air through the cover, an ink-cup attached to the lower por tion of the cover and having a cylindrical bore extending somewhat below the base o'i. the reservoir, the lower portion of said inlicup communicating with the reservoir through the front or cover, a clearance-chamber in the upper part of the ink-cup, a buoyant funnel adapted to lit loosely in the ink-cup, and a cap-funnel having a iianged top, said cap-funnel shouldered underneath to engage the top or' the inlecup.

4L. The combination with an ink-reservoir having an opening, ot' a detachable :front or cover for said opening, an air-chamber within the front or cover, the lower part oi said chainber communicating with the reservoir and the upper part communicating with the open air, an ink-cup attached to the lower portion of the front or cover and communicating with the reservoir through the front or cover, a buoyant funnel litting loosely within the inkcup, a clearance-since in the upper part oi the cup, and a stationary cap-funnel adapted to extend over the top of the ink-cup and to partly cover the buoyant ilunnel and shoul dered underneath to engage with the top ol the cup to constitute a stop to the rise ot' the buoyant funnel.

In testimony whereof I have hereunto set my signature in the presence oi two subscribing witnesses.

ISAAC L. DAVENPON'IV. Vitncsses:

J. lVAL'rnn fI)oUeLAss, lnoMAs M. SMITH. 

